LTM8061EV-4.1#PBF

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The LTM8061EV-4.1#PBF is a high efficiency, synchronous, dual output buck-boost switching mode power supply. This PMIC (power management integrated circuit) is intended for use with small to medium input voltages, from sources such as solar cells, fuel cells or batteries to provide regulated outputs in applications where the input polarity is unknown.

This power management integrated circuit is specifically designed for battery charger applications. The dual output configuration allows for simultaneous charging of two different battery chemistries. The LTM8061EV-4.1#PBF uses a high efficiency synchronous buck-boost topology that can generate up to 400 mA of output current at two regulated output voltages. The low quiescent current of the LTM8061EV-4.1#PBF makes it suitable for battery charging applications in portable devices as it allows the battery to remain charged for extended periods of time.

The LTM8061EV-4.1#PBF is designed to operate in a wide range of input voltages. It can accept input voltages ranging from 4.5V to 20V and has an adjustable output voltage from 0.6V to 6V. It is a monolithic IC that includes two high-speed synchronous step-down/step up converters, an internal/external input switch, a power-good driver and other features. It is compatible with most battery charge controllers and supports a wide range of battery chemistries, from NiMH to LiPo and Li-Ion.

The LTM8061EV-4.1#PBF is designed for high efficiency performance. It offers up to 95% peak efficiency and extends the charge time by reducing quiescent current to just 10 μA. The buck-boost topology ensures that the input voltage can be substantially higher than the output voltage and that the ripple voltage on the output is minimized.

The LTM8061EV-4.1#PBF is designed to provide power to the two battery cells independently. This ensures that each cell is charged in an optimized manner and that the cells are balanced. The charge state of each cell is monitored through an integrated comparator, allowing the chip to detect if one of the cells is overcharged or over-discharged.

In addition, the LTM8061EV-4.1#PBF provides a range of other features, including short circuit protection, thermal shutdown, and programmable soft start. Safety features include external loop compensation and temperature control, as well as ESD protection. Furthermore, the chip includes a 12-bit digital-to-analog converter (DAC) which enables voltage programming.

The LTM8061EV-4.1#PBF is an ideal PMIC for battery charger applications. It can regulate both the input and output voltage, provide power to two independent battery cells, and create an optimized charge pattern for extended battery life. Safety features protect against short circuit, thermal and ESD events, while the DAC provides voltage programming for improved flexibility. All of these features, combined with its high efficiency rating, make the LTM8061EV-4.1#PBF the ideal PMIC for battery charger applications.

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